西门子DP网络连接器6ES7972-0BA42-0XA0
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¥88西门子网络连接器6ES7972-0BA42-0XA0
¥88西门子连接器6ES7972-0BA42-0XA0
¥88西门子通讯连接器6ES7972-0BA42-0XA0
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¥88